Microsoft is revamping its Office 365 suite by integrating Anthropic’s Claude AI models, indicating a shift away from exclusive reliance on OpenAI. This decision comes after internal testing revealed that Anthropic’s models excelled in generating PowerPoint presentations and performing complex Excel tasks. As Microsoft serves over 430 million users globally, the use of Anthropic technology within the Office 365 Copilot suite highlights a dual-source strategy, balancing their relationship with both OpenAI and Anthropic.
Despite ongoing negotiations regarding OpenAI’s transition into a public benefit corporation, which have delayed its IPO until 2026, Microsoft continues to utilize OpenAI’s GPT-5 for select functionalities. The Office 365 Copilot subscription remains at $30 per user monthly, and early estimates suggest it could generate over $1 billion annually.
CEO Satya Nadella has appointed Charles Lamanna to oversee these integrations, emphasizing Anthropic’s growing role in Microsoft’s productivity tools amid rising competition in the enterprise AI sector.
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